Improvement in piano-fortes



UNITED STATES PATENT OEiucE.

s. T. PAEMELEE, OE NEWl HAVEN, CONNECTICUT, AssiGNoE To THE PAE- MELEE PIANO COMPANY, OE SAME PLACE.

IMPROVEMENT iN MANO-FORTES.

Specitication forming part of Letters Patent No. 46,759, dated March T, ISG-5.

New Haven, in the county of New Haven and j State ot Connecticut, have invented a new and useful improvement in Bianoliortes an d I do hereby declare the following to be a full, clear, and exact description ofthe same, when taken in connection with the accompanying drawings, and the letters ot' reference marked partof this specication, and represent, in-

frame and sounding upon my improved pla-n; l

and in Fig. 2, a section through P R of Fig. l.

more perfect, stronger, or prolonged vibration sounding board or both are in any manner A is the bottom; B, thel case of ordinary construction; C, the metallic frame, and D the sounding-board. The frame is made a i little smaller than the interior of the case, as

seen in Fig. l, and rests upon four (more or less) posts, E, to which it is secured by screws e. l make the sounding-board sufficiently large only and of the proper form to lie upon the under side of the frame, as seen in FiUr 9 thereon, and which said drawings constitute C' and secure it to the frame by means of screws around the edge of the frame, as seen in Fig. vIiigure l, a top view ot' an open case, with l, the frame being constructed, as seen in Fig. 2, so that the hoard comes in contact with the frame only at edge, both frame and sounding- The object of my invention is to attain a I board being entirely independent ot' the case.

i Thus constiiictcd, the frame may be struig than is possible when either the frame or;

connected with the case 5 also, greater facility in construction, as the frame-board and strings may be easily removed from the ease, as oecti-sion ,may require, without in the least I affecting the tune ofthe strings; or, if repairs are required to be made, it is a. great con. i

venience to be able to remove the board and frame. This cannot be done in ordinary pianos.

My invention consists, first, in the entire isolation of both the metallic frame and the sounding-board from the case; second, in conibining and uniting the soiindinghoard and I metallic frame iii such manner that they may -together be removed from the case without in any manner affecting the strings of the instrunents.

To enable others skilled in the art to construct pianos embodying my improvements, I will proceed to fully describe the same, as illustrated in the accompanying drawings.

before being placed within the case, tuned, rcmoved, and replacedf at the pleasure of the workmen or for whatever purpose required.

By the entire isolation of the frame and sounding board the vibration generated by the strings is confined wholly to the soundingboard, and is consequently more full and long than when the vibration is partially lost in the case, as in the usual construction.

Having therefore fully described my iiiveiig tion, what I claim as new and useful, and dc j sire to secure by Letters Pat-eut, is-

1. The entire isolation kof both the metallic frame and sounding, in the manner and for the purpose substantially as specified.

2. Combining and uniting the soundingboard with the frame, substantially as and for the purpose specified. Y

SPENCER T. PARMELEE.

Witnesses:

J O'HN E. EAELE, RUEUs SANFoRD. 

